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Diffstat (limited to 'syntax')
| -rw-r--r-- | syntax/execline.vim | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/syntax/execline.vim b/syntax/execline.vim new file mode 100644 index 0000000..3a866ed --- /dev/null +++ b/syntax/execline.vim @@ -0,0 +1,104 @@ +" Vim syntax file +" Language: execline +" Maintainer: Devin J. Pohly +" Latest Revision: 09 October 2016 + +if exists("b:current_syntax") + finish +endif + +syn iskeyword 33-126 + + +""" +""" Top-level constructs: commands, words, comments, and blocks. When in +""" conflict, words should take lowest priority. +""" +syn cluster elToplevel contains=elCommand,elWord,elComment,elBlock + +" Provided execline commands +syn keyword elCommand + \ execline-cd posix-cd cd execline-umask posix-umask umask + \ emptyenv envfile export unexport + \ fdclose fdblock fdmove fdswap fdreserve redirfd piperw heredoc + \ wait getcwd getpid exec tryexec exit trap withstdinas + \ foreground background case if ifelse ifte ifthenelse + \ backtick pipeline runblock + \ define importas elglob elgetpositionals multidefine multisubstitute + \ forx forstdin forbacktickx loopwhilex + \ elgetopt shift dollarat + \ homeof + +syn keyword elDeprecated import + +" Words can begin with any character greater than 0x20, and they end when +" encountering a character less than or equal to 0x20, unless prevented by an +" escape or quoted string. +syn region elWord start=/[\x21-\xff]/ end=/\_[\x00-\x20]/me=e-1 contains=@elInWord transparent + +" Comments begin with #, which must occur at the beginning of a "word". Since +" '#' does not end a word in the definition above, this will work. +syn region elComment start="#" end="$" + +" Blocks begin with { and end with }, each of which must be a word in itself +" (with no quotes, escapes, or further word characters). We add the elBrace +" matchgroup to prevent the closing brace from matching as an elWord, which +" would keep the end of the block from being recognized. +syn region elBlock matchgroup=elBrace start=/{\_[\x00-\x20]/rs=s+1,me=e-1 end=/}\_[\x00-\x20]/me=e-1 fold transparent contains=@elToplevel + + +""" +""" Syntax elements which occur within (and extend) words: escapes and quoted +""" strings. +""" +syn cluster elInWord contains=elEscape,elString,elSubstitution,elSimpleSub + +" Any single character outside a quoted string may be escaped with a +" backslash; no special meaning is given to escapes like \n. +syn match elEscape "\\\_." contained + +" Strings are straightforward +syn region elString start=/"/ end=/"/ contained contains=@elInString + + +""" +""" Syntax elements which occur within (and extend) quoted strings: line +""" continuations and escapes. +""" +syn cluster elInString contains=elStrContinuation,elStrEscape,elBadEscape,elSubstitution,elSimpleSub + +syn match elStrContinuation +\\\n+ contained +syn match elStrEscape +\\\%([1-9]\d\{0,2}\|0\o\{1,3}\|0x\x\{1,2}\|\D\)+ contained +syn match elBadEscape +\\0\%([^0-7x]\|x\X\)+ contained + + +""" XXX When in quotes, simple substitution continues until (and maybe past) +""" the end of quotes, unless encountering one of $, {, }, or \. + + +""" +""" Substitutions (only when not interfering with execline syntax) +""" +syn match elSubstitution /\${[^${}\\"]\+}/ contained + +hi def link elSimpleSub elSubstitution +syn match elSimpleSub /\$[^${}\\"\x00-\x20]\+\_[${}\\\x00-\x20]/me=e-1 contained + + +""" +""" Highlighting groups +""" +hi def link elCommand Statement +hi def link elComment Comment +hi def link elBrace Delimiter +hi def link elSubstitution PreProc + +hi def link elEscape String +hi def link elString String + +hi def link elStrContinuation Special +hi def link elStrEscape Special +hi def link elBadEscape Error +hi def link elDeprecated Error + +" vim:set ts=2 sw=2 et: |